Question

An alloy of gold, sliver and bronze contains 90% bronze, 7% gold and 3% silver. A second alloy of bronze and sliver only is melted with the first and the mixture contains 85% of bronze, 5% of gold and 10% of silver. Find the percentage of bronze in the second alloy.
(A) 75% (B) 72.5% (C) 70%
(D) 67.5%
please tell with full explaination

Answer 1

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